Stuff, stuffed, and stuffing may refer to:

• Physical matter
• General, unspecific things, or entities

• Stuff (1997), a novel by Joseph Connolly
• Stuff (2005), a book by Jeremy Strong

• A flying creature in the video game Kya: Dark Lineage

• The Stuff, a 1985 horror/comedy film by Larry Cohen
• Stuff (film), a 1993 documentary about John Frusciante's life

• Henry Wright (1849–1937), worked for Vanity Fair under the pseudonym "Stuff"

• Stuff (Holly McNarland album), 1997
• Stuff (band), a 1970s-1980s fusion/rhythm and blues music group
  • Stuff (Stuff album)
• Stuff., a Belgian jazz ensemble
• Stuff, a 1992 album by Bill Wyman
• "Stuff" (song), a 2000 single by Diamond Rio from the album One More Day
• Stuff (Eleanor McEvoy album), 2014
• Stuffed (album), by Mother Goose

• "Stuff" (How I Met Your Mother), a 2007 episode from the sitcom How I Met Your Mother
• Alexei Sayle's Stuff, a BBC comedy sketch series

• Stuff (magazine), a British consumer electronics magazine
• Stuff (company), New Zealand media company (formerly Fairfax New Zealand)
  • Stuff (website), the titular news website of the company

• Bit stuffing, the insertion of noninformation bits into computerized data
• To compress files using StuffIt

• Stuffing, edible mixture, used to fill a cavity in another food item or served as a side dish
• An animal preserved by means of taxidermy
• To be beyond satiety after a meal

• Christian Stuff (born 1982), German footballer

• Stuff (cloth), a generic term for woven fabrics
• Stuffed toy, a children's toy sewn from a textile and filled with soft matter
• A clothing line by singer Hilary Duff